You can pick up any chemical that is available and can be put away in the correct bin. It doesn't need to be one category first and then another.
Use the graph line as your guide. Place the pole at center of one line. The other lines are your guide to how much space and how much to open the claw.
There is an inner claw and the big outer one. The inner claw is the one you position to hold the chemical.
Placing in the bin has to be way inside and also have space to release the chemical.
